<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>dom-选择器</title>

</head>
<body>

<div id="box1" name="box" class="box">hello</div>

<p id="box2" name="box" class="box">hello</p>

<div id="box3" name="box" class="box">hello</div>

</body>
<script src="../js/1.selector.js"></script>


</html>